The campaign contributed to a surge in sales, with shoppers reportedly buying 147,000 tins of beans in an hour, 19.8 million grams of Cathedral City Cheese, and three weeks’ worth of fish fingers in a day. Strategic timing also helped: the campaign was launched in the first few weeks of January, when shoppers typically tighten their belts post-Christmas.

https://econsultancy.com/10-of-the-best-ad-campaigns-from-the-uk-s-top-supermarkets/